FR622724A - Improvements to automatic and semi-automatic telephone systems - Google Patents

Improvements to automatic and semi-automatic telephone systems

Info

Publication number
FR622724A
FR622724A FR622724DA FR622724A FR 622724 A FR622724 A FR 622724A FR 622724D A FR622724D A FR 622724DA FR 622724 A FR622724 A FR 622724A
Authority
FR
France
Prior art keywords
automatic
semi
telephone systems
automatic telephone
systems
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Thales SA
Original Assignee
Le Materiel Telephonique Thomson CSF
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Le Materiel Telephonique Thomson CSF filed Critical Le Materiel Telephonique Thomson CSF
Application granted granted Critical
Publication of FR622724A publication Critical patent/FR622724A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q3/00—Selecting arrangements
    • H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Interface Circuits In Exchanges (AREA)
FR622724D 1925-04-08 1926-07-17 Improvements to automatic and semi-automatic telephone systems Expired FR622724A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB935725A GB256300A (en) 1925-04-08 1925-04-08 Improvements in automatic and semi-automatic telephone systems

Publications (1)

Publication Number Publication Date
FR622724A true FR622724A (en) 1927-06-04

Family

ID=9870367

Family Applications (1)

Application Number Title Priority Date Filing Date
FR622724D Expired FR622724A (en) 1925-04-08 1926-07-17 Improvements to automatic and semi-automatic telephone systems

Country Status (2)

Country Link
FR (1) FR622724A (en)
GB (1) GB256300A (en)

Also Published As

Publication number Publication date
GB256300A (en) 1926-08-09

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